Dugganite Mineral Data

General Dugganite Information

Chemical Formula:

Pb3Zn3Te(As,V,Si)2(O,OH)14

Composition:

Molecular Weight = 1,302.29 gm

Vanadium 2.35 % V 4.19 % V₂O₅

Zinc 15.06 % Zn 18.75 % ZnO

Silicon 0.65 % Si 1.38 % SiO₂

Tellurium 9.80 % Te 12.26 % TeO₂

Arsenic 6.90 % As 9.12 % As₂O₃

Hydrogen 0.31 % H 2.77 % H₂O

Lead 47.73 % Pb 51.42 % PbO

Oxygen 17.20 % O

______ ______

100.00 % 99.88 % = TOTAL OXIDE

Empirical Formula:

Pb₃Zn₃TeAs_1.2V⁵⁺_0.6Si_0.3O₁₀(OH)₄

Environment:

Rare secondary mineral in the oxidize zone of telluide-bearing depoists

IMA Status:

Approved IMA 1978

Locality:

Emerald mine, Tombstone, Cochise County, Arizona, USA Link to MinDat.org Location Data.

Name Origin:

Named after Marjorie Duggan, analytical chemist, in reference to her discovery of Te6+ [hexavalent tellurium] in nature.

Name Pronunciation:

Dugganite + Pronunciation

Synonym:

ICSD 85574

PDF 29-1429

Dugganite Image

Images:

Dugganite

Comments: Green crystalline aggregate of dugganite.
Location: Tombstone, Cochise County, Arizona, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Dugganite Crystallography

Axial Ratios:

a:c = 1:0.61473

Cell Dimensions:

a = 8.472, c = 5.208, Z = 1; V = 323.72 Den(Calc)= 6.68

Crystal System:

Hexagonal - Dihexagonal Dipyramidal H-M Symbol (6/m 2/m 2/m) Space Group: P 6/mmm

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.284(1), 2.997(0.8), 2.446(0.6),

Physical Properties of Dugganite

Cleavage:

{1120} Indistinct

Color:

Colorless, Green, White.

Density:

6.33

Diaphaneity:

Transparent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Hardness:

3 - Calcite

Luster:

Adamantine

Streak:

white

Optical Properties of Dugganite

Gladstone-Dale:

CI meas= 0.1 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.147 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1455,KPDmeas= 0.1536,KC= 0.1706
Ncalc = 2.08 - 2.14

Optical Data:

Uniaxial (-), e=1.967, w=1.977, bire=0.0100.

Calculated Properties of Dugganite

Electron Density:

Bulk Density (Electron Density)=5.46 gm/cc
note: Specific Gravity of Dugganite =6.33 gm/cc.

Fermion Index:

Fermion Index = 0.11
Boson Index = 0.89

Photoelectric:

PE_Dugganite= 898.46 barns/electron
U=PE_Dugganite x rElectron Density=4,905.17 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Dugganite is Not Radioactive

Dugganite Classification

Dana Class:

33.03.05.03 (33)Selenates and Tellurates

(33.03)with other anion groups

(33.03.05)Pb, Zn Tellurates

33.03.05.01 Cheremnykhite Zn3Pb3TeO6(VO4)2 C mmm,C 222,Cm2m,C mm2 Ortho

33.03.05.02 Kuksite Pb3Zn3TeO6(PO4)2 C mmm 2/m 2/m 2/m

33.03.05.03 Dugganite Pb3Zn3Te(As,V,Si)2(O,OH)14 P 6/mmm 6/m 2/m 2/m

33.03.05.04 Joelbruggerite! Pb3Zn3SbAs2O13(OH) P 3₂1 3 2

Strunz Class:

08.BL.20 08 - PHOSPHATES, ARSENATES, VANADATES

08.B - Phosphates, etc. with Additional Anions, without H2O

08.BL -With medium-sized and large cations, (OH, etc.):RO4 = 3:1

08.BL.20 Dugganite Pb3Zn3Te(As,V,Si)2(O,OH)14 P 6/mmm 6/m 2/m 2/m

08.BL.20 Cheremnykhite Zn3Pb3TeO6(VO4)2 C mmm,C 222,Cm2m,C mm2 Ortho

08.BL.20 Kuksite Pb3Zn3TeO6(PO4)2 C mmm 2/m 2/m 2/m

Other Dugganite Information

References:

NAME( Enc. Min. Vol 2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Dugganite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Dugganite

Pb3Zn3Te(As,V,Si)2(O,OH)14
Dana No: 33.03.05.03 Strunz No: 08.BL.20
Locality:

Notes:

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